mbed TLS v2.11.0
ccm.h
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1 
30 /*
31  * Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved
32  * SPDX-License-Identifier: Apache-2.0
33  *
34  * Licensed under the Apache License, Version 2.0 (the "License"); you may
35  * not use this file except in compliance with the License.
36  * You may obtain a copy of the License at
37  *
38  * http://www.apache.org/licenses/LICENSE-2.0
39  *
40  * Unless required by applicable law or agreed to in writing, software
41  * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
42  * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
43  * See the License for the specific language governing permissions and
44  * limitations under the License.
45  *
46  * This file is part of Mbed TLS (https://tls.mbed.org)
47  */
48 
49 #ifndef MBEDTLS_CCM_H
50 #define MBEDTLS_CCM_H
51 
52 #include "cipher.h"
53 
54 #define MBEDTLS_ERR_CCM_BAD_INPUT -0x000D
55 #define MBEDTLS_ERR_CCM_AUTH_FAILED -0x000F
56 #define MBEDTLS_ERR_CCM_HW_ACCEL_FAILED -0x0011
59 #ifdef __cplusplus
60 extern "C" {
61 #endif
62 
63 #if !defined(MBEDTLS_CCM_ALT)
64 // Regular implementation
65 //
66 
71 typedef struct {
73 }
75 
76 #else /* MBEDTLS_CCM_ALT */
77 #include "ccm_alt.h"
78 #endif /* MBEDTLS_CCM_ALT */
79 
88 
102  mbedtls_cipher_id_t cipher,
103  const unsigned char *key,
104  unsigned int keybits );
105 
113 
142 int mbedtls_ccm_encrypt_and_tag( mbedtls_ccm_context *ctx, size_t length,
143  const unsigned char *iv, size_t iv_len,
144  const unsigned char *add, size_t add_len,
145  const unsigned char *input, unsigned char *output,
146  unsigned char *tag, size_t tag_len );
147 
184  const unsigned char *iv, size_t iv_len,
185  const unsigned char *add, size_t add_len,
186  const unsigned char *input, unsigned char *output,
187  unsigned char *tag, size_t tag_len );
188 
213 int mbedtls_ccm_auth_decrypt( mbedtls_ccm_context *ctx, size_t length,
214  const unsigned char *iv, size_t iv_len,
215  const unsigned char *add, size_t add_len,
216  const unsigned char *input, unsigned char *output,
217  const unsigned char *tag, size_t tag_len );
218 
251 int mbedtls_ccm_star_auth_decrypt( mbedtls_ccm_context *ctx, size_t length,
252  const unsigned char *iv, size_t iv_len,
253  const unsigned char *add, size_t add_len,
254  const unsigned char *input, unsigned char *output,
255  const unsigned char *tag, size_t tag_len );
256 
257 #if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
258 
264 int mbedtls_ccm_self_test( int verbose );
265 #endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
266 
267 #ifdef __cplusplus
268 }
269 #endif
270 
271 #endif /* MBEDTLS_CCM_H */
void mbedtls_ccm_free(mbedtls_ccm_context *ctx)
This function releases and clears the specified CCM context and underlying cipher sub-context...
The CCM context-type definition. The CCM context is passed to the APIs called.
Definition: ccm.h:71
int mbedtls_ccm_star_encrypt_and_tag(mbedtls_ccm_context *ctx, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *input, unsigned char *output, unsigned char *tag, size_t tag_len)
This function encrypts a buffer using CCM*.
mbedtls_cipher_id_t
Supported cipher types.
Definition: cipher.h:80
int mbedtls_ccm_encrypt_and_tag(mbedtls_ccm_context *ctx, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *input, unsigned char *output, unsigned char *tag, size_t tag_len)
This function encrypts a buffer using CCM.
int mbedtls_ccm_star_auth_decrypt(mbedtls_ccm_context *ctx, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *input, unsigned char *output, const unsigned char *tag, size_t tag_len)
This function performs a CCM* authenticated decryption of a buffer.
This file contains an abstraction interface for use with the cipher primitives provided by the librar...
int mbedtls_ccm_setkey(mbedtls_ccm_context *ctx, mbedtls_cipher_id_t cipher, const unsigned char *key, unsigned int keybits)
This function initializes the CCM context set in the ctx parameter and sets the encryption key...
int mbedtls_ccm_auth_decrypt(mbedtls_ccm_context *ctx, size_t length, const unsigned char *iv, size_t iv_len, const unsigned char *add, size_t add_len, const unsigned char *input, unsigned char *output, const unsigned char *tag, size_t tag_len)
This function performs a CCM authenticated decryption of a buffer.
int mbedtls_ccm_self_test(int verbose)
The CCM checkup routine.
mbedtls_cipher_context_t cipher_ctx
Definition: ccm.h:72
void mbedtls_ccm_init(mbedtls_ccm_context *ctx)
This function initializes the specified CCM context, to make references valid, and prepare the contex...